feat: add a new optional property tableDeletionProtection (#42)

src/terraformStateBackend.ts

@@ -52,11 +52,12 @@ export class TerraformStateBackend extends Construct {
 
     this.table = new dynamodb.Table(this, 'table', {
       tableName: props.tableName,
+      billingMode: dynamodb.BillingMode.PAY_PER_REQUEST,
+      deletionProtection: props.tableDeletionProtection ?? false,
       partitionKey: {
         name: 'LockID',
         type: dynamodb.AttributeType.STRING,
       },
-      billingMode: dynamodb.BillingMode.PAY_PER_REQUEST,
       pointInTimeRecovery: true,
       removalPolicy: RemovalPolicy.DESTROY,
     });

src/terraformStateBackendProperties.ts

@@ -1,4 +1,24 @@
 export interface TerraformStateBackendProperties{
+  /**
+   * The name of the bucket to create.
+   *
+   * @type {string}
+   * @memberof TerraformStateBackendProperties
+   */
   readonly bucketName: string;
+  /**
+   * The name of the DynamoDB table to create.
+   *
+   * @type {string}
+   * @memberof TerraformStateBackendProperties
+   */
   readonly tableName: string;
+
+  /**
+   * Whether to protect the created DynamoDB table from being accidentally deleted.
+   * @default false
+   * @type {boolean}
+   * @memberof TerraformStateBackendProperties
+   */
+  readonly tableDeletionProtection?: boolean;
 }

test/terraformStateBackend.test.ts

@@ -233,6 +233,7 @@ describe('DynamoDB Configuration', () => {
     new TerraformStateBackend(stack, 'backend', {
       bucketName: '',
       tableName: '',
+      tableDeletionProtection: true,
     });
   });
 
@@ -245,6 +246,14 @@ describe('DynamoDB Configuration', () => {
     );
   });
 
+  test('Non-default value for deletion protection', () => {
+    assertions.Template.fromStack(stack).hasResourceProperties(
+      'AWS::DynamoDB::Table',
+      {
+        DeletionProtectionEnabled: true,
+      },
+    );
+  });
   test('[DynamoDB.2] DynamoDB tables should have point-in-time recovery enabled', () => {
     assertions.Template.fromStack(stack).hasResourceProperties(
       'AWS::DynamoDB::Table',